Heinrich IV. Reuß von Plauen, Herr von Greiz, was born circa 1333 to Heinrich II. Reuß von Plauen (bef1289-1350) and Salome of Zagan (aft1320-c1359) and died before 18 August 1368 of unspecified causes. He married Agnes von Leisnig (-aft1359) 4 March 1355 JL . He married Jutta von Hackeborn (c1343-) .
Children
| Name | Birth | Death | Joined with |
| Heinrich VII. Reuß von Plauen (-aft1398) | |||
| Heinrich VIII. Reuß von Plauen (c1368-1426) | 1368 | 16 June 1426 Aussig | Mechtild von Schönburg-Crimmitschau (c1380-?) Irmgard von Kirchberg (c1372-aft1462) |